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External monitor won't connect - Dell Laptop

by _margaret_ / October 29, 2013 2:55 AM PDT

I have a Dell Latitude E5430 laptop running Windows 7 64-bit and my external monitor is no longer connecting to the computer. I have been connecting it with a VGA cable and it was working as of Friday, then when I attempted on Saturday it would not connect, the monitor says "No Signal". When I go to Screen Resolution, I'm given the option of extending the screen, duplicating, etc. And when the screen is "extended" windows will disappear into the screen, but the screen will still not display. But the same options appear and the same thing happens with the extended display even with the VGA cord is NOT plugged into the computer.

I know this is not a problem with the monitor because I have now tried 3 different monitors with 3 different cables that have all worked previously with my computer and work now with other computers. I'm worried it might be a hardware issue with the VGA port.

Other things I've tried, but did not work: - Updating my video driver - System restore - first back to Saturday, then back 2 weeks

Please let me know if you have any ideas!

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All Answers

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OK, it's a dell latitude.
by R. Proffitt Forum moderator / October 29, 2013 3:04 AM PDT
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already tried Function F8
by _margaret_ / October 29, 2013 3:32 AM PDT

Thanks for responding R. Proffitt

I already tried Function + F8 and I get the options of showing computer only, duplicate, extend, or projector only. I've tried all the options and none of them work.

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It's starting to sound like a hardware failure.
by R. Proffitt Forum moderator / October 29, 2013 3:35 AM PDT

Let's forget Windows for a moment. Boot up to the BIOS screen and try the FN F8 again. If that fails my bet is the port has suffered a failure.

Don't panic, USB video cards are cheaper than repairing this laptop.

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PS. Just thought of something. Dell's QuickSet software
by R. Proffitt Forum moderator / October 29, 2013 3:47 AM PDT

Is it running?

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Re: Dell's QuickSet software
by _margaret_ / October 29, 2013 3:58 AM PDT

Nothing happened when I pressed FN F8 in the BIOS screen.

What is QuickSet? Where would I find that?

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look at Number 5
by itsdigger / October 29, 2013 4:07 AM PDT
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Try a restore point
by Willy / October 29, 2013 3:43 AM PDT

Go back and use the MS restorce feature and pick Fri. date or one before any problems arose. provided there is no other issue here, then it will go back to that data when it worked. If it doesn't then some h/w failure or possible s/w glitch is at fault.

tada -----Willy Happy

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Re: restore point
by _margaret_ / October 29, 2013 4:01 AM PDT
In reply to: Try a restore point

Thanks for the response Willy. Unfortunately I already tried the restore point all the way back to 10/16 and it didn't work.

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Reviewed initial post
by Willy / October 29, 2013 4:22 AM PDT
In reply to: Re: restore point

I see in the latter part of the 1st post the restore was done. In this case and considering all other posts, you may have done that's possible. You may well assume that a h/w fault is present. If routing to the outside monitor by whatever video s/w management doesn't correct this then suspect a true h/w fault. Excluding any Dell setup here and relying only on the video s/w, then I suspect that a possible "single video source output" could have been set which defeats the prior setting.This may result in only the ext. monitor being displayed and blanks out the PC own display. However, this can be glitched and the reverse can be done.

In this case and to restart all this over again, de-install the actual video drivers in "safe mode". Once done and complete, reboot. hopefully, it will see it needs to update or provide video drivers and you the user allow this to happen, follow prompts(point to new video drivers/source). However, it may find these on its own. Once done, reboot again and see if that resolves the issue.

tada -----Willy Happy

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